Floor drain



July 12, 1960 w. B. LOFFLER FLOOR DRAIN Filed Sept. 29, 1955 A 3 s 5 Mli 4/ 4 F 9 W E 3 5 m 7 u 9 w m a m" w W n.

aw j'mlw/ mm 5 2 iinited States Fateiit FLOOR DRAIN er 3 W a d Hi l erri fl- Markkleebeig-Mitt'e, Ge many I Filed-Sept. 29,1955, sen-N537,515.

echiinis. (C1; 216 166) The present invention relatestoddraining'devices and I 'paired or 'destroyed bysthei ammonia'calgases coming isconheeted.

hem the sewer line to which the floo drai Y It is a furth r object ofthe present invention to yi'de aifio'o r'dr'ain which they also e usedrer'era ri i ice I 2 The opening 5 is formedfbetween the inner walls ofa frame of the floor drain 1. closure member or cover 7 resting on saidinner walls "25 has a 'arojez'itioh or flange 3 projecting downwardlyinto a groove 6 of the frame 11 surroundin the inner walls '25.According to the embodiment shown in Fig. l, the top surface of thecover 7 being of rectangular si'lape is fin'sh with the topof the frame11 and the topof the grating '3. The walls ofthe frame 11 surroundingthe groove 6 are provided with a plurality of recesses '9' h'avin'ginclined rear faces. Normally, the space in the groov 6 between thewalls and the cover '7 is filled with sealing means (hot shown), forexample a cold, on or the like so as "to 'preventlthe escape'ofobn'oidous gases through the space he'- liquid or the like to a sewerline, which li uid tiieltl a v iiito eraeks or joints. of a floor, ,7 tI It is still another 'obect of the present; iriyention to provide 'afloor drain with an interceptor of odors which eahiiet'bereihevedincidentally-er arbitrarily. I g

A further object of the invention is to improye on the eohstriie'tien offloor drains as new customary made.

Other objects and; advantages of the present invention will beeemeapparent 'fi'ehi the following detetiie'd'iie 'scriptio'n thereof inconnection with the accompany nfg drawings showing, by wa of exam le,some embodimerits of the present invention.

In the drawings L V Fig. i is-a Vertical sectional View of a near drainaccording to the invention, i g i Fig. 2 is a top plan View of the floordrain shown in Fig.1, v

Fig. 3 is a veitical'se'etienal viewer another embodiment of the closingarrangement which may hellsed in the floor drain shown in Fig. 1 insteadof the'elesihg a1- r ail geme'nt shown in the l" feifigure,

,Fi 4 is a top plan viewer the arran ement" shown in Fig. 3. g I I MFig. 5 is a perspee'tive' iew eta further embodiment of a closuremeiiibr for use in the flee-r drainshowh in Fig. 1 the clesiiie memberbeing in a somewhat lifted position, and

.Fig. 6 is a verticalseetiehal ef ah auxiliaryihed 'wliiehmay be needin" conjunction with the fldoridrain shownin Fig.1.

.l leteir'ing new to the are hi h, and first to Figs 1 and '2, a floordrain 1 aceer mg to theinventieh amount of a fluid or liquid. The fluidor liquid to'be drained may enter the compartment '16 through a grating'3 having 'a plurality of apert e; 23 'inits'spherical bottorn and beingremovably placed; on a shoulder 80 of said compartment 16. The wallsofthe floor drainIoonsist preferably ofone piece and-includea partition-2,aportion of which dips into the liquid contained in the cornpartment 16.The compartment 16 communicates with a downwardly extending outlet orpipe 4 which may be 1 used for connection with a sewer line. 7

An. opening 5 communicates with the portion of the compartment 16 behindthe partition 2 and with the outlet 4. Said opening 5 may be used forcleaning purposes.

pre's a compartment 16 adapted to 'hold a'cer'tainf 35 lever forlevering up the cover 7 in the manner deser-lbed gtieh v'iththe ebevehiehtiehea dew waia y "e3":

tween the cover '7 and the"fr arr'1e11. Thiis'. a-perfect "cover 7.

Aeeeiaihg te the mhedihieht shown in Figs. -1 a a 2, the recesses 9 arearranged opposite each other. The inclined rear surfaces of saidrecesses 9 are offst'icii "a width and length tliat they ermit anabutting eii' agemerit with a tool such as a chisel, for lifting theeaver by engagement of the tip of the tool with the lo tii'er s face ofthe laterally projecting edge-15 of "the sever 7. Also, the angle of theinclination of said 'in'eli-iied iear surface is chosen in such 'a whytha'tit inay sei'V-e an abutting surface for the tool when the latter'isiise'd above. In order to facilitate matters, the flail 8 at the cover'7 is provided with notches 10, or'the opposite "the recesses "9, whichnotches 19 may re'c ei'i e the tip 'of the tool leveling np'the cover 7.

The oiitl'etfi of the floor drain 1 is attached to the bowl-shapedliquid receiving compartment 16. A pa titi o'ri 1'7 extendingiiptv'ardly ff'din the'bowl 1'5 e water seal "in said bowl orcompartment '16 iii c partition 2.. AS the partitions 2 T7 are integiathe main body'of the fleet drain 1, they he ti inev'ed incidentally erarbitrarily; removal of the sealing ine'ahs pr 'ttnder'sii'abl'e odorsis rendered iiiipessih 50 the arraiigemeh't described above rovides fiera simple oasting whih .inay'bernanhfactured at low cost.

The floor drain 1 has an upper rhn provided witl'i'a catehiiigree've 19arranged for receiving Water'br liquid losin'g r'tiie sle the.latterf-ioirl co'n mg 1-, the rim or a plilrality of slots'22 spacedfrom each other and-allowing the trickling water to reach the groove 19.Preferably the ledge 21 is 5 millimeters high and 3 millimeters thick. aa

The operation of the floor drain is as follows: The liquid collecting onthe floor flows through the slots of the cover 3 shaped as a grating and'collectsin the lower portion of the compartment 16. If sufi'icientliquid has accumulated therein, the upper level thereof rises above theupper edge of the partition 17, the channel provided between the twopartitions 2 and 17 forming a water seal within the bowl 16. When theWater level rises beyond the upper edge of the partition 17 the waterflows into the outlet or outflow pipe 4 from which it is conveyed by itsown weight into a conduit (not shown), for example sewer line, or thelike. The sealed cover 7 prevents any gases separated from the liquid,such as ammonia, from escaping through the opening 5.

However, when it is intended to clean the floor drain and/or outflowpipe 4 the cover 7 may be temporarily removed from the opening byinserting a tool or tools such as a chisel or the like into the recesses9 for levering up the cover 7 and removing same'temporarily.

The embodiment shown in Figs. 3 and 4 substantially corresponds to thatshown in Figs. 1 and 2. However the four recesses 9 of the embodimentshown in Figs. 1 and 2 are replaced by a chamfered edge 109 (Figs. 3 and4) of the frame 11 of the floor drain 1 surrounding the rim of the cover7 along its entire length. Again the cover 7 resting on the top of theinner Walls 25 and entering the groove 6 by its downward flange 8 may belevered up (for opening the passage 5) by means of one or more tools(chisels or screw-drivers, for example) inserted at suitable places intothe recess 109 and engaged with the lower side of the projecting edge 15of the cover 7. Preferably two tools inserted into the recess 109 atopposite sides of the cover 7 are used for lifting up the latter. Ifdesired, however, the recess 109 and the corresponding projecting edge15 must not necessarily surround the entire cover 7. For example therecess 109 and the corresponding projecting edge 15 may be arranged onlyat two opposite sides of the frame 11.

According to the embodiment of a closure member shown in Fig. 5 of thedrawing, the cover 207 to be inserted into the aperture of the frame 11of the floor drain 1 so as to prevent odors from escaping is providedwith beveled corners 212 leaving a substantially triangular space 226 atthe corners of the groove 6. Furthermore the cover 207 is provided withundercuts 227 at said beveled corners 212. Thus if the cover 207 shallbe levered up for opening the aperture of the frame 11 for cleaningpurposes, one or more tools 13, for example chisels, are inserted intothe triangular spaces 226 for engagement of their tips with the surfacesof the undercuts 227. Thus, the cover 207 may be readily removed fromthe aperture of the frame 11. Instead of arranging four beveled corners212 and four undercuts 227 as shown in Fig. 5, only two beveled corners212 and two undercuts 227 could be arranged at opposite corners of thecover 207; such an arrangement could also be sufficient for lifting thecover by means of tools, such as chisels or screw-drivers.

Fig. 6 illustrates a hollow auxiliary body 329 which may be placed intothe groove 6 of the floor drain 1 shown in Fig. 1 upon removal of thecover 7, if so desired. The auxiliary body 329 has an opening 305arranged at a high level which may be closed by a cover (not shown)similar to the cover 7 shown in Fig. 1. The wall 311 of the auxiliarybody has a plurality of inclined recesses 309 corresponding to therecesses 9 of the frame 11 shown in Fig. 1. The use of the auxiliarybody 329 for an elevated arrangement of the cleaning opening 305 (Fig.6) above the grating 3 (Fig. 1) of the floor drain is of specialadvantage in lavatories as this protects the attendant from contactingurine flowing or collecting in grooves.

I have described hereinbefore preferred embodiments of my invention, butit is understood that this disclosure is for the purpose ofillustratiomand that various omissions and changes in shape, proportionand arrangement of parts, as well as the substitution of equivalentelements for the arrangements shown and described may be made withoutdeparting from the spirit and scope of the invention as set forth in theappended claims.

What I claim is:

1. A floor drain comprising walls defining a bowl portion, asubstantially vertical downwardly extending discharge conduit portionconnected to the upper end of one side of said bowl portion, a topportion above said bowl portion having side by side pair of openingsincluding an inlet opening in alignment with said bowl and an accessopening in alignment with said discharge conduit portion, said topportion including a downwardly extending baffle wall spaced from theside of said bowl adjacent said discharge conduit portion andextendingdownwardly into said bowl to a position spaced from the bottom of saidbowl whereby to define a substantially U-shaped passage from said inletopening in said cover to said discharge conduit portion, a floor levelflange extending around theoutside of said drain at a location spaceddownwardly from said cover portion, said flange including spacedupstanding portions with small openings therebetween to trap wastematerial thereon, said flange being sloped downwardly toward said bowl,at least one opening in said bowl at the inner end of said flange, saidcover including an interior shoulder extending around said inlet openingand a shoulder extending around said access opening, a perforated drainplate positioned on said cover inlet opening interior shoulder andclosing said inlet opening, and .a cover plate closing said accessopening.

2. A floor drain according to claim 1 wherein said access opening has anupstanding peripheral wall at the inside of said shoulder portion andincluding a removable extension portion having walls which arepositioned in said access opening and rest on the shoulder thereof onthe outside of said interior upstanding peripheral wall.

References Cited in the file of this patent UNITED STATES PATENTS239,741 Doherty Apr. 15, 1881 278,723 Monteath June 5, .1883 522,351Phillips July 3, 1894 563,030 Fischer June 30, 1896 636,722 Greger Nov.7, 1899 649,340 Nelson May 8, 1900 652,605 Faller June 26, 1900 835,012Craig Nov. 6, 1906 855,017 OBrien May 28, 1907 1,007,463 Madden Oct. 31,1911 1,070,003 Beswick Aug. 12, 1913 1,099,069 Matthews et al June 2,1914 1,453,743 Bruce May 1, 1923 1,675,714 Koch July 3, 1928 1,910,186Sisk May 23, 1933 2,501,971 Schenck Mar. 28, 1950 2,550,402 Boosey Apr.24, 1951 FOREIGN PATENTS 29,489 Great Britain Dec. 22, 1896 22,403 GreatBritain of 1902 56,987 Switzerland Aug. 28,.1911 82,160 Sweden Dec. 4,1934

